Device for flattening finished paper bags.



'NG- FINISHED EMG LEI) 00T, 5.8, Milf'.

APPLICATION FI- thereot the bag is flattened more and more until the Varm 'n has reached the position shown in Fig. 2 in which the rollers o meet v the ealns completely told down the bottom. Atl the same tilne the lever turns farther so that the plate :c is pressed down by the rollers o riding on the Canis Z and is pushed into the gap between the rollers f and 7c. (Fig. The bag; is thus completely flattened by passing' between the rollers and Z* and by the simultaneous downward pressure of the 'plate mwhile the latter is advanced at a slow rate. The rounded form of the face et the roller 1, Fig. 4:, prevents the bag being,y erunxpled as there is therefore nol pleasure between the rollers 7c and f, but only between the rollers e, where the bag is already flattened. The air pressed out during the flattening operation can thus escape at the corners w and 'thence along the edgesv ot the folds to the mouth of the bag so that no air is entrapped which might during the flattening operation inflate the corners fw and prevent their being smoothly flattened. The rollers e, between which the bag .is `now fed, draw it between themselves thereby Compress it in such a manner, that it retains the flattened shape.

The cam r is of such a shape that the plate g is moved downward in correspondence with the' advance of the belt g, whereupon it returns rapidly so that it will' not prevent the bag from completely passing between the rollers.

The rollers c and the cams Z may also be omitted, so that then the front edge of the andl of rollers a sec-ond IIGSSQS.

plate a: abuts against the roller 7c and slides down along` the same. This arrangement is, however, less advantageous, as the platel a slightly' rounded face, an oseillative plate pivoted to the standard, a shoe pivoted to said plate, a cam that is adapted tooperatively engage the shoe and press the/same against the bag bottom, and a pair of pressure rollers arranged back of the folding rollers.

2. Device for attening nished paper' bags, boxes, and the l1ke,-co1npr1smga belt,

conveyer adapted 4to convey the bag between two lattening rollers, and a latteningslide,

the said flatteningslide adapted to roel: and j I settle down about. the middle otthe` bag.,

and to compress the bag partly while slid? lng toward its bottom in consequence et its rocking motion and feed it between the said rollers, the upper one of said rollers having 'i a slightly rounded face, means for pressing down the slide completely on the conveyer belt and advancing it into the gap between the said rollers, behind the first said pair pair of pressing rollers for the flattened bags.

In testimony whereof I have hereunto set my signature in the presence of two wit- EM IL JAGENBERG.

Witnesses:

MARTIN FEYBUSEL, FRANK v. BRIEsEN. 

